Joseph hoffman



(NoModL) J. HOFFMAN- Le ad a. nd CrayonHolder.

No. 241,362. Patented May 10,1881.

' fizz 21502:

N. PETERS, Phota-Likhcgrap'ner, Washington. D. C.

UNITED STATES PATENT OFFICE.

JOSEPH HOFFMAN, on NEW YonK, N. Y., Assienoa T JOSEPH.

REeKENDonEER, or SAME PLAoE.

LEAD ANQD CRAYON HOLDER.

I SBECIFICATION forming part of Letters Patent No. 241,362, dated May. 10,1881.

Application filed November 9, 1880. (No model.)

To all whom "it may concern:

Be itknown that I, JOSEPH HOFFMAN, of New York city, in the county and State of New York, have invented certain new and usefullmprovements in Pencil or Lead and Crayon Holders, of which the following is a specification.

' carrier may be locked immovably against backelevation of the carrier.

ward movement in any position to which it may he brought, this being desirable in order to prevent the carrier from being pushed back by pressure on the outer end of the lead when the latter is in use. 7

In the accompanying drawings I have represented a lead or crayon holder embodying my invention.

Figure 1 is a longitudinal central section of the device, partly in elevation. Figs.2 and 3 are perspective views, on an enlarged scale, of a portion of the device, the sheath or handle being partly broken away.

Fig. 5 is a transverse section of theholder.

Ais the external sheath or handle; B, an inner tube, which receives the lead-carrier, and which I term the receiver. '0 is the lead-carrier, and D acap or head mounted on the rear end of the handle and fastened to the tube. The lead-carrier fits snugly in the receiver, and is adapted to slide back and forth therein. It is made tubular to receive the lead a, and has at its rear a stud, b, which projects through a slot, 0, in the sheathto the outside. The stud fits the slot 0, so that the carrier, while capas ble of longitudinal movement, cannot rotate independently of the sheath. The receiver is a tube longitudinally slptted at d, and fastened rigidly at the rear to the cap or headD, closing the rear end of the sheath. This cap may be mounted in or on the sheath. The latter arrange- Fig. 4 is a side ment is shown in the drawings. The receiver, atits front, projects beyond the sheath. and is provided on this projecting end with a flange or shoulder,f, which abuts against the contraeted front end of the sheath. The projectin g part of the receiver constitutes a nozzle for the support of the lead which may be projected through it. The tubeis held in the sheath by the shoulderfin front and the cap D in-rear, in such manner as to be incapable of longitud inal movement.

The construction described has the advantage, among others, of permitting the receiver and sheath to be readily and inexpensively fitted and secured together.

A longitudinal slot d, hereinbefore referred to, is formed in the receiver. One edge of the slot is serrated or provided with ratchet-teeth h.

The opposite edge is plain. The stud b of the carrier passes through this slot and-carries a spring tooth, detent, or pawl, 6, adapted to engage the teeth h. The slot (1 is of such width, relatively to the size of the stud b, that the receiver may be rotated in either direction far enough to bring the detent i into or out of engagement with the teeth h, according to the direction of rotation, the carrier being prevented from following the rotary movement of the receiver by means of the stud b, which fits the narrow slot 0 in the sheath, said slot, at the front, terminating at about the point marked 0, Fig. 1. The receiver can readily be rotated by means of the cap D.

The mode of operation is as follows: When it is desired to project the lead from the holder the carrier, by means of a suitable device attached to the outer end of its stud, (forinstance, a ring, j, as shown in the drawings, or a sleeve, or any equivalentdevice for the purpose,) is moved forward, this movement readily taking place, whatever may be the position of the parts, the spring tooth or pawl, in case it is in engagement with the ratchet-teeth, riding over them without difficulty. As soon as the lead projects the proper distance the receiver is turned to engage ratchet-teeth with the pawl, the parts then occupying the position shown in Fig. 2, and in dotted lines in Fig. 5. In this position the carrier cannot be pushed back by pressure upon the point of the lead. In order to retract the lead the receiver is partly rotated to disengage the detent and ratchet, the parts assuming the position indicated in Fig.

3, and in full lines in Fig. 5, and the carrierv can then be pulled back without any trouble.

[remark,iu conclusion, that I am aware that a lead-carrier within a sheath has before been provided with a detent to act in conjunction with teeth which serve to hold the carrier in any position to which it may be advanced. I am not aware, however, that there has been before combined with the sheath and sliding carrier a partially-rotating receiver containing the carrier, and arranged to operate as above described.

It is manifest that the tube which I have termed the receiver may be arranged in various ways, so as to be adapted to have a movement of partial rotation relatively to the carrier. I do not therefore restrict myself to the particular details ofconstruction herein shown and specified; but

I claim as my invention the following:

1. The combination, with the sheath and the sliding leadcarrier, ofa slotted receiver adapted to have a movement of partial rotation, and provided with teeth to engage a detent on the carrier, substantially as hereinbefore set forth.

2. The combination, with the slotted sheath or handle and the longitudinally-movable leadcarrier provided with pawl or detcnt, of the slotted and toothed receiver containing the carrier and held in the sheath so as to be capable of partial rotation without longitudinal movement.

3. In combination with the sheath and the carrier and carrier pawl or detent, the partlyrotating toothed and slotted receiver provided with a nozzle end projecting beyond the front end of the sheath, and held in the sheath bya shoulder in front and cap or head at rear, so as to be incapable of longitudinal movement therein, substantially as hereinhefore set forth.

Iutestimony whereof I have hereunto set my hand this 8th day of November, 1880.

JOSEPH HOFFMAN.

Witnesses:

LEOPOLD AUSBACHER, JOE W. SWAINE. 

